The Fluke TiS20+ has a range of -20 °C to 150 °C (-4°F to 302°F) and the Fluke TiS20+ Max has a range of -20 °C to 400°C (-4°F to 752 °F). Here's what Fluke have to say about the product Sleep mode allows the user to conserve the battery life when it is not in use; it can be quickly powered on again by pressing the power button.
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